Influence of Cadophora finlandica and other microbial treatments on cadmium and zinc uptake in willows grown on polluted soil
2007
Dos Santos Utmazian, M.N.,University of Natural Resources and Applied Life Sciences, Vienna (Austria). Dept. of Forest and Soil Sciences | Schweiger, P.,University of Natural Resources and Applied Life Sciences, Vienna (Austria). Dept. of Forest and Soil Sciences | Sommer, P.,University of Natural Resources and Applied Life Sciences, Vienna (Austria). Dept. of Forest and Soil Sciences | Gorfer, M.,University of Natural Resources and Applied Life Sciences, Vienna (Austria). Dept. of Applied Plant Sciences and Plant Biotechnology | Strauss, J.,University of Natural Resources and Applied Life Sciences, Vienna (Austria). Dept. of Applied Plant Sciences and Plant Biotechnology | Wenzel, W.W.,University of Natural Resources and Applied Life Sciences, Vienna (Austria). Dept. of Forest and Soil Sciences
We conducted a pot experiment to evaluate the Cd and Zn accumulation in leaves and roots of Salix smithiana (BOKU-03DE-001) and S. caprea (BOKU-01AT-004) clones grown on a metal-contaminated soil as affected by native microbes extracted from the same experimental soil, and the fungus Cadophora finlandica. Plant biomass production of S. smithiana was decreased in all the treatments compared with the sterilized control. In contrast, S. caprea grew best on the non-sterilized soil. Similar effects were observed for plant Zn and Cd contents. Microbial treatments affected metal accumulation differently in the two Salix species. The effects of the microbial treatments on biomass and metal content of leaves were not related to the degree of mycorrhization. Our findings also illustrate a difficulty of successful rhizosphere management using metal-tolerant microbial isolates to further enhance the phytoextraction process.
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